package com.xm.thread;

import com.xm.thread.bean.School;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.concurrent.ConcurrentHashMap;

public class ExecutorService04 {
    public static void main(String[] args) {
        List<String> list = Collections.synchronizedList(new ArrayList<String>());

        ConcurrentHashMap<String, School> concurrentHashMap = new ConcurrentHashMap<>();
    }

}
